first commit
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787
components/com_jce/editor/libraries/classes/utility.php
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787
components/com_jce/editor/libraries/classes/utility.php
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<?php
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/**
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* @copyright Copyright (c) 2009-2022 Ryan Demmer. All rights reserved
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* @license GNU/GPL 2 or later - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* JCE is free software. This version may have been modified pursuant
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* to the GNU General Public License, and as distributed it includes or
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* is derivative of works licensed under the GNU General Public License or
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* other free or open source software licenses
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*/
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defined('JPATH_PLATFORM') or die('RESTRICTED');
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/* Set internal character encoding to UTF-8 */
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if (function_exists('mb_internal_encoding')) {
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mb_internal_encoding("UTF-8");
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}
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abstract class WFUtility
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{
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/**
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* Multi-byte-safe pathinfo replacement.
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* Drop-in replacement for pathinfo(), but multibyte- and cross-platform-safe.
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*
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* From PHPMailer - https://github.com/PHPMailer/PHPMailer/blob/v6.1.4/src/PHPMailer.php#L4256-L4302
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*
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* @see http://www.php.net/manual/en/function.pathinfo.php#107461
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*
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* @param string $path A filename or path, does not need to exist as a file
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* @param int|string $options Either a PATHINFO_* constant,
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* or a string name to return only the specified piece
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*
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* @return string|array
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*/
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public static function mb_pathinfo($path, $options = null)
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{
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// check if multibyte string, use pathname() if not
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if (function_exists('mb_strlen')) {
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if (mb_strlen($path) === strlen($path)) {
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return pathinfo($path, $options);
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}
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}
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$ret = array('dirname' => '', 'basename' => '', 'extension' => '', 'filename' => '');
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$pathinfo = array();
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if (preg_match('#^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^.\\\\/]+?)|))[\\\\/.]*$#m', $path, $pathinfo)) {
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if (array_key_exists(1, $pathinfo)) {
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$ret['dirname'] = $pathinfo[1];
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}
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if (array_key_exists(2, $pathinfo)) {
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$ret['basename'] = $pathinfo[2];
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}
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if (array_key_exists(5, $pathinfo)) {
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$ret['extension'] = $pathinfo[5];
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}
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if (array_key_exists(3, $pathinfo)) {
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$ret['filename'] = $pathinfo[3];
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}
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}
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switch ($options) {
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case PATHINFO_DIRNAME:
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case 'dirname':
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return $ret['dirname'];
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case PATHINFO_BASENAME:
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case 'basename':
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return $ret['basename'];
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case PATHINFO_EXTENSION:
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case 'extension':
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return $ret['extension'];
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case PATHINFO_FILENAME:
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case 'filename':
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return $ret['filename'];
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default:
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return $ret;
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}
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}
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/**
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* Get the file extension from a path
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*
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* @param string $path The file path
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* @return string The file extension
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*/
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public static function getExtension($path)
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{
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$dot = strrpos($path, '.') + 1;
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return substr($path, $dot);
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}
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/**
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* Remove the extension from a file name or path
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*
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* @param string $path The file path
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* @return string The file path without the extension
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*/
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public static function stripExtension($path)
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{
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return preg_replace('#\.[^.]*$#', '', $path);
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}
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/**
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* Get the file name
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*
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* @param string $path The file path
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* @return string The file name without the path or extension
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*/
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public static function getFilename($path)
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{
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// check if multibyte string, use basename() if not
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if (function_exists('mb_strlen')) {
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if (mb_strlen($path) === strlen($path)) {
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return pathinfo($path, PATHINFO_FILENAME);
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}
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}
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// get basename
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$path = self::mb_basename($path);
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// remove name without extension
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return self::stripExtension($path);
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}
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public static function cleanPath($path, $ds = DIRECTORY_SEPARATOR, $prefix = '')
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{
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$path = trim(rawurldecode($path));
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// check for UNC path on IIS and set prefix
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if ($ds == '\\' && strlen($path) > 1) {
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if ($path[0] == '\\' && $path[1] == '\\') {
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$prefix = '\\';
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}
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}
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// clean path, removing double slashes, replacing back/forward slashes with DIRECTORY_SEPARATOR
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$path = preg_replace('#[/\\\\]+#', $ds, $path);
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// return path with prefix if any
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return $prefix . $path;
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}
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/**
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* Append a DIRECTORY_SEPARATOR to the path if required.
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*
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* @param string $path the path
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* @param string $ds optional directory seperator
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*
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* @return string path with trailing DIRECTORY_SEPARATOR
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*/
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public static function fixPath($path, $ds = DIRECTORY_SEPARATOR)
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{
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return self::cleanPath($path . $ds);
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}
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private static function checkCharValue($string)
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{
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// null byte check
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if (strstr($string, "\x00")) {
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return false;
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}
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if (preg_match('#([^\w\.\-\/\\\\\s ])#i', $string, $matches)) {
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foreach ($matches as $match) {
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// not a safe UTF-8 character
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if (ord($match) < 127) {
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return false;
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}
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}
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}
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return true;
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}
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public static function checkPath($path)
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{
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$path = urldecode($path);
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if (self::checkCharValue($path) === false || strpos($path, '..') !== false) {
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throw new InvalidArgumentException('Invalid path');
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}
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}
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/**
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* Concat two paths together. Basically $a + $b.
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*
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* @param string $a path one
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* @param string $b path two
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* @param string $ds optional directory seperator
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*
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* @return string $a DIRECTORY_SEPARATOR $b
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*/
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public static function makePath($a, $b, $ds = DIRECTORY_SEPARATOR)
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{
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return self::cleanPath($a . $ds . $b, $ds);
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}
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private static function utf8_latin_to_ascii($subject)
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{
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static $CHARS = null;
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if (is_null($CHARS)) {
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$CHARS = array(
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'À' => 'A', 'Á' => 'A', 'Â' => 'A', 'Ã' => 'A', 'Ä' => 'A', 'Å' => 'A', 'Æ' => 'AE',
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'Ç' => 'C', 'È' => 'E', 'É' => 'E', 'Ê' => 'E', 'Ë' => 'E', 'Ì' => 'I', 'Í' => 'I', 'Î' => 'I', 'Ï' => 'I',
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'Ð' => 'D', 'Ñ' => 'N', 'Ò' => 'O', 'Ó' => 'O', 'Ô' => 'O', 'Õ' => 'O', 'Ö' => 'O', 'Ø' => 'O',
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'Ù' => 'U', 'Ú' => 'U', 'Û' => 'U', 'Ü' => 'U', 'Ý' => 'Y', 'ß' => 's',
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'à' => 'a', 'á' => 'a', 'â' => 'a', 'ã' => 'a', 'ä' => 'a', 'å' => 'a', 'æ' => 'ae',
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'ç' => 'c', 'è' => 'e', 'é' => 'e', 'ê' => 'e', 'ë' => 'e', 'ì' => 'i', 'í' => 'i', 'î' => 'i', 'ï' => 'i',
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'ñ' => 'n', 'ò' => 'o', 'ó' => 'o', 'ô' => 'o', 'õ' => 'o', 'ö' => 'o', 'ø' => 'o', 'ù' => 'u', 'ú' => 'u', 'û' => 'u', 'ü' => 'u',
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'ý' => 'y', 'ÿ' => 'y', 'Ā' => 'A', 'ā' => 'a', 'Ă' => 'A', 'ă' => 'a', 'Ą' => 'A', 'ą' => 'a',
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'Ć' => 'C', 'ć' => 'c', 'Ĉ' => 'C', 'ĉ' => 'c', 'Ċ' => 'C', 'ċ' => 'c', 'Č' => 'C', 'č' => 'c', 'Ď' => 'D', 'ď' => 'd', 'Đ' => 'D', 'đ' => 'd',
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'Ē' => 'E', 'ē' => 'e', 'Ĕ' => 'E', 'ĕ' => 'e', 'Ė' => 'E', 'ė' => 'e', 'Ę' => 'E', 'ę' => 'e', 'Ě' => 'E', 'ě' => 'e',
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'Ĝ' => 'G', 'ĝ' => 'g', 'Ğ' => 'G', 'ğ' => 'g', 'Ġ' => 'G', 'ġ' => 'g', 'Ģ' => 'G', 'ģ' => 'g', 'Ĥ' => 'H', 'ĥ' => 'h', 'Ħ' => 'H', 'ħ' => 'h',
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'Ĩ' => 'I', 'ĩ' => 'i', 'Ī' => 'I', 'ī' => 'i', 'Ĭ' => 'I', 'ĭ' => 'i', 'Į' => 'I', 'į' => 'i', 'İ' => 'I', 'ı' => 'i',
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'IJ' => 'IJ', 'ij' => 'ij', 'Ĵ' => 'J', 'ĵ' => 'j', 'Ķ' => 'K', 'ķ' => 'k', 'Ĺ' => 'L', 'ĺ' => 'l', 'Ļ' => 'L', 'ļ' => 'l', 'Ľ' => 'L', 'ľ' => 'l', 'Ŀ' => 'L', 'ŀ' => 'l', 'Ł' => 'l', 'ł' => 'l',
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'Ń' => 'N', 'ń' => 'n', 'Ņ' => 'N', 'ņ' => 'n', 'Ň' => 'N', 'ň' => 'n', 'ʼn' => 'n', 'Ō' => 'O', 'ō' => 'o', 'Ŏ' => 'O', 'ŏ' => 'o', 'Ő' => 'O', 'ő' => 'o', 'Œ' => 'OE', 'œ' => 'oe',
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'Ŕ' => 'R', 'ŕ' => 'r', 'Ŗ' => 'R', 'ŗ' => 'r', 'Ř' => 'R', 'ř' => 'r', 'Ś' => 'S', 'ś' => 's', 'Ŝ' => 'S', 'ŝ' => 's', 'Ş' => 'S', 'ş' => 's', 'Š' => 'S', 'š' => 's',
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'Ţ' => 'T', 'ţ' => 't', 'Ť' => 'T', 'ť' => 't', 'Ŧ' => 'T', 'ŧ' => 't', 'Ũ' => 'U', 'ũ' => 'u', 'Ū' => 'U', 'ū' => 'u', 'Ŭ' => 'U', 'ŭ' => 'u', 'Ů' => 'U', 'ů' => 'u', 'Ű' => 'U', 'ű' => 'u', 'Ų' => 'U', 'ų' => 'u',
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'Ŵ' => 'W', 'ŵ' => 'w', 'Ŷ' => 'Y', 'ŷ' => 'y', 'Ÿ' => 'Y', 'Ź' => 'Z', 'ź' => 'z', 'Ż' => 'Z', 'ż' => 'z', 'Ž' => 'Z', 'ž' => 'z', 'ſ' => 's', 'ƒ' => 'f', 'Ơ' => 'O', 'ơ' => 'o', 'Ư' => 'U', 'ư' => 'u',
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'Ǎ' => 'A', 'ǎ' => 'a', 'Ǐ' => 'I', 'ǐ' => 'i', 'Ǒ' => 'O', 'ǒ' => 'o', 'Ǔ' => 'U', 'ǔ' => 'u', 'Ǖ' => 'U', 'ǖ' => 'u', 'Ǘ' => 'U', 'ǘ' => 'u', 'Ǚ' => 'U', 'ǚ' => 'u', 'Ǜ' => 'U', 'ǜ' => 'u',
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'Ǻ' => 'A', 'ǻ' => 'a', 'Ǽ' => 'AE', 'ǽ' => 'ae', 'Ǿ' => 'O', 'ǿ' => 'o',
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);
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}
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if (function_exists('transliterator_transliterate')) {
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if (is_array($subject)) {
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/*array_walk($subject, function (&$string) {
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$string = WFUtility::utf8_latin_to_ascii($string);
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});*/
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for ($i = 0; $i < count($subject); $i++) {
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$subject[$i] = WFUtility::utf8_latin_to_ascii($subject[$i]);
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}
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return $subject;
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}
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$transformed = transliterator_transliterate('Any-Latin; Latin-ASCII;', $subject);
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if ($transformed !== false) {
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return $transformed;
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}
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return str_replace(array_keys($CHARS), array_values($CHARS), $subject);
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}
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return str_replace(array_keys($CHARS), array_values($CHARS), $subject);
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}
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protected static function changeCase($string, $case)
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{
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if (!function_exists('mb_strtolower') || !function_exists('mb_strtoupper')) {
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return $string;
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}
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if (is_array($string)) {
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for ($i = 0; $i < count($string); $i++) {
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$string[$i] = WFUtility::changeCase($string[$i], $case);
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}
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} else {
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switch ($case) {
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case 'lowercase':
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$string = mb_strtolower($string);
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break;
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case 'uppercase':
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$string = mb_strtoupper($string);
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break;
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}
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}
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return $string;
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}
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private static function cleanUTF8($string)
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{
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// remove some common characters
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$string = preg_replace('#[\+\\\/\?\#%&<>"\'=\[\]\{\},;@\^\(\)£€$~]#', '', $string);
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$result = '';
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$length = strlen($string);
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for ($i = 0; $i < $length; $i++) {
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$char = $string[$i];
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// only process on possible restricted characters or utf-8 letters/numbers
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if (preg_match('#[^\w\.\-\s ]#', $char)) {
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// skip any character less than 127, eg: &?@* etc.
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if (ord($char) < 127) {
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continue;
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}
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}
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$result .= $char;
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}
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return $result;
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}
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/**
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* Makes file name safe to use.
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*
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* @param mixed The name of the file (not full path)
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*
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* @return mixed The sanitised string or array
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*/
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public static function makeSafe($subject, $mode = 'utf-8', $spaces = '_', $case = '')
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{
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$search = array();
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// set default mode if none is passed in
|
||||
if (empty($mode)) {
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$mode = 'utf-8';
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}
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|
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if (!function_exists('mb_internal_encoding')) {
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$mode = 'ascii';
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}
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// trim
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if (is_array($subject)) {
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$subject = array_map('trim', $subject);
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} else {
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$subject = trim($subject);
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}
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|
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// replace spaces with specified character or space
|
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if (is_string($spaces)) {
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$subject = preg_replace('#[\s ]+#', $spaces, $subject);
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}
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if ($mode === 'utf-8') {
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$search[] = '#[^\pL\pM\pN_\.\-\s ]#u';
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} else {
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$subject = self::utf8_latin_to_ascii($subject);
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$search[] = '#[^a-zA-Z0-9_\.\-\s ]#';
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}
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||||
|
||||
// remove multiple . characters
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$search[] = '#(\.){2,}#';
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||||
|
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// strip leading period
|
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$search[] = '#^\.#';
|
||||
|
||||
// strip trailing period
|
||||
$search[] = '#\.$#';
|
||||
|
||||
// strip whitespace
|
||||
$search[] = '#^\s*|\s*$#';
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||||
|
||||
// only for utf-8 to avoid PCRE errors - PCRE must be at least version 5
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if ($mode == 'utf-8') {
|
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try {
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// perform pcre replacement
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||||
$result = preg_replace($search, '', $subject);
|
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} catch (Exception $e) {
|
||||
// try ascii
|
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return self::makeSafe($subject, 'ascii');
|
||||
}
|
||||
|
||||
// try ascii
|
||||
if (is_null($result) || $result === false) {
|
||||
return self::makeSafe($subject, 'ascii');
|
||||
}
|
||||
|
||||
if ($case) {
|
||||
// change case
|
||||
$result = self::changeCase($result, $case);
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
$result = preg_replace($search, '', $subject);
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||||
|
||||
if ($case) {
|
||||
// change case
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$result = self::changeCase($result, $case);
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Format the file size, limits to Mb.
|
||||
*
|
||||
* @param int $size the raw filesize
|
||||
*
|
||||
* @return string formated file size
|
||||
*/
|
||||
public static function formatSize($size)
|
||||
{
|
||||
if ($size < 1024) {
|
||||
return $size . ' ' . WFText::_('WF_LABEL_BYTES');
|
||||
} elseif ($size >= 1024 && $size < 1024 * 1024) {
|
||||
return sprintf('%01.2f', $size / 1024.0) . ' ' . WFText::_('WF_LABEL_KB');
|
||||
} else {
|
||||
return sprintf('%01.2f', $size / (1024.0 * 1024)) . ' ' . WFText::_('WF_LABEL_MB');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Format the date.
|
||||
*
|
||||
* @param int $date the unix datestamp
|
||||
*
|
||||
* @return string formated date
|
||||
*/
|
||||
public static function formatDate($date, $format = '%d/%m/%Y, %H:%M')
|
||||
{
|
||||
return strftime($format, $date);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the modified date of a file.
|
||||
*
|
||||
* @return Formatted modified date
|
||||
*
|
||||
* @param string $file Absolute path to file
|
||||
*/
|
||||
public static function getDate($file)
|
||||
{
|
||||
return self::formatDate(@filemtime($file));
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the size of a file.
|
||||
*
|
||||
* @return Formatted filesize value
|
||||
*
|
||||
* @param string $file Absolute path to file
|
||||
*/
|
||||
public static function getSize($file)
|
||||
{
|
||||
return self::formatSize(@filesize($file));
|
||||
}
|
||||
|
||||
/**
|
||||
* Multi-byte-safe dirname replacement.
|
||||
* https://gist.github.com/tcyrus/257a1ed93c5e115b7b33426d029b5c5f
|
||||
*
|
||||
* @param string $path A Path
|
||||
* @param int $levels The number of parent directories to go up.
|
||||
* @return string The path of a parent directory.
|
||||
*/
|
||||
public static function mb_dirname($path)
|
||||
{
|
||||
// check if multibyte string, use dirname() if not
|
||||
if (function_exists('mb_strlen')) {
|
||||
if (mb_strlen($path) === strlen($path)) {
|
||||
return dirname($path);
|
||||
}
|
||||
}
|
||||
|
||||
// clean
|
||||
$path = self::cleanPath($path, '/');
|
||||
|
||||
// get last slash position
|
||||
$slash = strrpos($path, '/') + 1;
|
||||
|
||||
// return dirname
|
||||
return substr($path, 0, $slash);
|
||||
}
|
||||
|
||||
public static function mb_basename($path, $ext = '')
|
||||
{
|
||||
// check if multibyte string, use basename() if not
|
||||
if (function_exists('mb_strlen')) {
|
||||
if (mb_strlen($path) === strlen($path)) {
|
||||
return basename($path, $ext);
|
||||
}
|
||||
}
|
||||
|
||||
// clean
|
||||
$path = self::cleanPath($path, '/');
|
||||
|
||||
// split path
|
||||
$parts = explode('/', $path);
|
||||
|
||||
// return basename
|
||||
$path = end($parts);
|
||||
|
||||
if ($ext === '.' . self::getExtension($path)) {
|
||||
$path = self::stripExtension($path);
|
||||
}
|
||||
|
||||
return $path;
|
||||
}
|
||||
|
||||
public static function convertEncoding($string)
|
||||
{
|
||||
if (!function_exists('mb_detect_encoding')) {
|
||||
// From http://w3.org/International/questions/qa-forms-utf-8.html
|
||||
$isUTF8 = preg_match('%^(?:
|
||||
[\x09\x0A\x0D\x20-\x7E] # ASCII
|
||||
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
|
||||
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
|
||||
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
|
||||
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
|
||||
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
|
||||
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
|
||||
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
|
||||
)*$%xs', $string);
|
||||
|
||||
if (!$isUTF8) {
|
||||
return utf8_encode($string);
|
||||
}
|
||||
|
||||
return $string;
|
||||
}
|
||||
|
||||
// get encoding
|
||||
$encoding = mb_detect_encoding($string, "auto", true);
|
||||
|
||||
// return existing string if it is already utf-8
|
||||
if ($encoding === 'UTF-8') {
|
||||
return $string;
|
||||
}
|
||||
|
||||
// invalid encoding, so make a "safe" string
|
||||
if ($encoding === false) {
|
||||
return preg_replace('#[^a-zA-Z0-9_\.\-\s ]#', '', $string);
|
||||
}
|
||||
|
||||
// convert to utf-8 and return
|
||||
return mb_convert_encoding($string, 'UTF-8', $encoding);
|
||||
}
|
||||
|
||||
public static function isUtf8($string)
|
||||
{
|
||||
if (!function_exists('mb_detect_encoding')) {
|
||||
// From http://w3.org/International/questions/qa-forms-utf-8.html
|
||||
return preg_match('%^(?:
|
||||
[\x09\x0A\x0D\x20-\x7E] # ASCII
|
||||
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
|
||||
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
|
||||
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
|
||||
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
|
||||
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
|
||||
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
|
||||
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
|
||||
)*$%xs', $string);
|
||||
}
|
||||
|
||||
return mb_detect_encoding($string, 'UTF-8', true);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert size value to bytes.
|
||||
*/
|
||||
public static function convertSize($value)
|
||||
{
|
||||
$unit = '';
|
||||
|
||||
preg_match('#([0-9]+)\s?([a-z]*)#i', $value, $matches);
|
||||
|
||||
if (isset($matches[1])) {
|
||||
$value = (int) $matches[1];
|
||||
}
|
||||
|
||||
if (isset($matches[2])) {
|
||||
$unit = $matches[2];
|
||||
|
||||
// extract first character only, eg: g, m, k
|
||||
if ($unit) {
|
||||
$unit = strtolower($unit[0]);
|
||||
}
|
||||
}
|
||||
|
||||
$value = intval($value);
|
||||
|
||||
// Convert to bytes
|
||||
switch ($unit) {
|
||||
case 'g':
|
||||
$value = $value * 1073741824;
|
||||
break;
|
||||
case 'm':
|
||||
$value = $value * 1048576;
|
||||
break;
|
||||
case 'k':
|
||||
$value = $value * 1024;
|
||||
break;
|
||||
}
|
||||
|
||||
return $value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks an upload for suspicious naming, potential PHP contents, valid image and HTML tags.
|
||||
*/
|
||||
public static function isSafeFile($file)
|
||||
{
|
||||
// null byte check
|
||||
if (strstr($file['name'], "\x00")) {
|
||||
@unlink($file['tmp_name']);
|
||||
throw new InvalidArgumentException('The file name contains a null byte.');
|
||||
}
|
||||
|
||||
// check name for invalid extensions
|
||||
if (self::validateFileName($file['name']) !== true) {
|
||||
@unlink($file['tmp_name']);
|
||||
throw new InvalidArgumentException('The file name contains an invalid extension.');
|
||||
}
|
||||
|
||||
$isImage = preg_match('#\.(jpeg|jpg|jpe|png|gif|wbmp|bmp|tiff|tif|webp|psd|swc|iff|jpc|jp2|jpx|jb2|xbm|ico|xcf|odg)$#i', $file['name']);
|
||||
|
||||
// check file for <?php tags
|
||||
$fp = @fopen($file['tmp_name'], 'r');
|
||||
|
||||
if ($fp !== false) {
|
||||
$data = '';
|
||||
|
||||
while (!feof($fp)) {
|
||||
$data .= @fread($fp, 131072);
|
||||
// we can only reliably check for the full <?php tag here (short tags conflict with valid exif xml data), so users are reminded to disable short_open_tag
|
||||
if (stripos($data, '<?php') !== false) {
|
||||
@unlink($file['tmp_name']);
|
||||
throw new InvalidArgumentException('The file contains PHP code.');
|
||||
}
|
||||
|
||||
// check for `__HALT_COMPILER()` phar stub
|
||||
if (stripos($data, '__HALT_COMPILER()') !== false) {
|
||||
@unlink($file['tmp_name']);
|
||||
throw new InvalidArgumentException('The file contains PHP code.');
|
||||
}
|
||||
|
||||
$data = substr($data, -10);
|
||||
}
|
||||
|
||||
fclose($fp);
|
||||
}
|
||||
|
||||
// validate image
|
||||
if ($isImage && @getimagesize($file['tmp_name']) === false) {
|
||||
@unlink($file['tmp_name']);
|
||||
throw new InvalidArgumentException('The file is not a valid image.');
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check file name for extensions.
|
||||
*
|
||||
* @param type $name
|
||||
*
|
||||
* @return bool
|
||||
*/
|
||||
public static function validateFileName($name)
|
||||
{
|
||||
if (empty($name) && (string) $name !== "0") {
|
||||
return false;
|
||||
}
|
||||
|
||||
// list of invalid extensions
|
||||
$executable = array(
|
||||
'php', 'php3', 'php4', 'php5', 'php6', 'php7', 'phar', 'js', 'exe', 'phtml', 'java', 'perl', 'py', 'asp', 'dll', 'go', 'ade', 'adp', 'bat', 'chm', 'cmd', 'com', 'cpl', 'hta', 'ins', 'isp',
|
||||
'jse', 'lib', 'mde', 'msc', 'msp', 'mst', 'pif', 'scr', 'sct', 'shb', 'sys', 'vb', 'vbe', 'vbs', 'vxd', 'wsc', 'wsf', 'wsh', 'svg',
|
||||
);
|
||||
|
||||
// get file parts, eg: ['image', 'php', 'jpg']
|
||||
$parts = explode('.', $name);
|
||||
|
||||
// remove extension
|
||||
array_pop($parts);
|
||||
|
||||
// remove name
|
||||
array_shift($parts);
|
||||
|
||||
// no extensions in file name
|
||||
if (empty($parts)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
// lowercase it
|
||||
array_map('strtolower', $parts);
|
||||
|
||||
// check for extension in file name, eg: image.php.jpg
|
||||
foreach ($executable as $extension) {
|
||||
if (in_array($extension, $parts)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Method to determine if an array is an associative array.
|
||||
*
|
||||
* @param array An array to test
|
||||
*
|
||||
* @return bool True if the array is an associative array
|
||||
*
|
||||
* @link https://www.php.net/manual/en/function.is-array.php#84488
|
||||
*/
|
||||
public static function is_associative_array($array)
|
||||
{
|
||||
if (!is_array($array)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
$i = count($array);
|
||||
|
||||
while ($i > 0) {
|
||||
if (!array_key_exists(--$i, $array)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
public static function isJson($value)
|
||||
{
|
||||
// value must be a string
|
||||
if (!$value || !is_string($value)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// trim
|
||||
$value = trim($value);
|
||||
|
||||
if (!$value) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// quick syntax check
|
||||
if ($value[0] !== '{' && $value[0] !== '[') {
|
||||
return false;
|
||||
}
|
||||
|
||||
// full check using json_decode
|
||||
json_decode($value);
|
||||
return json_last_error() == JSON_ERROR_NONE;
|
||||
}
|
||||
|
||||
/**
|
||||
* array_merge_recursive does indeed merge arrays, but it converts values with duplicate
|
||||
* keys to arrays rather than overwriting the value in the first array with the duplicate
|
||||
* value in the second array, as array_merge does. I.e., with array_merge_recursive,
|
||||
* this happens (documented behavior):.
|
||||
*
|
||||
* array_merge_recursive(array('key' => 'org value'), array('key' => 'new value'));
|
||||
* => array('key' => array('org value', 'new value'));
|
||||
*
|
||||
* array_merge_recursive_distinct does not change the datatypes of the values in the arrays.
|
||||
* Matching keys' values in the second array overwrite those in the first array, as is the
|
||||
* case with array_merge, i.e.:
|
||||
*
|
||||
* array_merge_recursive_distinct(array('key' => 'org value'), array('key' => 'new value'));
|
||||
* => array('key' => array('new value'));
|
||||
*
|
||||
* Parameters are passed by reference, though only for performance reasons. They're not
|
||||
* altered by this function.
|
||||
*
|
||||
* @param array $array1
|
||||
* @param array $array2
|
||||
* @param boolean $ignore_empty_string
|
||||
*
|
||||
* @return array
|
||||
*
|
||||
* @author Daniel <daniel (at) danielsmedegaardbuus (dot) dk>
|
||||
* @author Gabriel Sobrinho <gabriel (dot) sobrinho (at) gmail (dot) com>
|
||||
*/
|
||||
public static function array_merge_recursive_distinct(array $array1, array $array2, $ignore_empty_string = false)
|
||||
{
|
||||
$merged = $array1;
|
||||
|
||||
foreach ($array2 as $key => $value) {
|
||||
if (self::is_associative_array($value) && array_key_exists($key, $merged) && self::is_associative_array($merged[$key])) {
|
||||
$merged[$key] = self::array_merge_recursive_distinct($merged[$key], $value, $ignore_empty_string);
|
||||
} else {
|
||||
if (is_null($value)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (array_key_exists($key, $merged) && $ignore_empty_string && $value === "") {
|
||||
continue;
|
||||
}
|
||||
|
||||
$merged[$key] = $value;
|
||||
}
|
||||
}
|
||||
|
||||
return $merged;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user